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package com.sun.enterprise.transaction.api;

import org.jvnet.hk2.annotations.Contract;

/**
 * ResourceRecoveryManager interface to be implemented by the resource manager
 * that supports XA recovery.
 *
 * @author Marina Vatkina
 */

@Contract
public interface ResourceRecoveryManager {

    /**
     * recover incomplete transactions
     * @param delegated indicates whether delegated recovery is needed
     * @param logPath transaction log directory path
     * @return boolean indicating the status of transaction recovery
     * @throws Exception when unable to recover
     */
    public boolean recoverIncompleteTx(boolean delegated, String logPath) throws Exception;

    /**
     * recover incomplete transactions with before and after event notifications
     * @param delegated indicates whether delegated recovery is needed
     * @param logPath transaction log directory path
     * @param instance the name opf the instance for which delegated recovery is requested, null if unknown
     * @param notifyRecoveryListeners specifies whether recovery listeners are to be notified
     * @return boolean indicating the status of transaction recovery
     * @throws Exception when unable to recover
     */
    public boolean recoverIncompleteTx(boolean delegated, String logPath, String instance, 
            boolean notifyRecoveryListeners) throws Exception;

    /**
     * recover the xa-resources
     * @param force boolean to indicate if it has to be forced.
     */
    public void recoverXAResources(boolean force);

    /**
     * to recover xa resources
     */
    public void recoverXAResources();

    /**
     * to enable lazy recovery, setting lazy to "true" will
     *
     * @param lazy boolean
     */
    public void setLazyRecovery(boolean lazy);
}